A 68 kg crate is dragged across a floor by pulling on a rope attached to the crate and inclined 158 above the horizontal. (a) If the coefficient of static friction is 0.50, what minimum force magnitude is required from the rope to start the crate moving? (b) If mk = 0.35, what is the magnitude of the initial acceleration of the crate?

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter5: More Applications Of Newton’s Laws
Section: Chapter Questions
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A 68 kg crate is dragged across a floor by pulling on
a rope attached to the crate and inclined 158 above the horizontal.
(a) If the coefficient of static friction is 0.50, what minimum force
magnitude is required from the rope to start the crate moving?
(b) If mk = 0.35, what is the magnitude of the initial acceleration of
the crate?

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